Question 195245
PAY NO ATTENTION TO JOHN......WHATS ANNOYING IS SOME ONE WHO TYPES IN LARGE FONTS ALL THE TIME


a) {{{-x^2+4x+1}}}  (-.24,0) and (4.24,0)
:
b)set x equal to zero y=-(0)^2+4(0)+1=1
    y intercept is 1: (0,1)
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c) maximum is {{{y=-1(x^2-4x+4)+4+1}}}-->{{{y=-1(x-2)^2+5}}}
:
so maximum is (2,5)
:
*[invoke solve_quadratic_equation -1, 4, 1]